Doussot, Charlotte: Leaving and returning home. Visually-guided homing in Bombus terrestris. 2020
Inhalt
- General Introduction
- The concept of navigation
- Terminology of Homing behaviours
- Insects as model species to study homing
- Bombus terrestris
- Biology of Bombus terrestris
- The navigational toolkit of Bombus terrestris for homing:
- Path-integration of flying hymenopterans
- The start of the journey: the learning flight
- Finding the nest-entrance
- Classification of visually-based local homing strategies
- Non-holistic strategies
- Holistic strategies
- Conclusion
- Thesis Outline
- Comparative study of visually based homing models during visual conflict
- Abstract
- Introduction
- Materials and Methods
- Experimental design
- Training and test procedure
- Behavioural analysis
- Homing Algorithms
- Description of the Homing algorithm behaviour using the Helmholtz-Hodge decomposition
- Quantifying the models predictions
- Results
- Behavioural analysis
- Simulations of visually based homing under non-conflict condition
- Bumblebees' homing behaviour versus model performance during visual conflict
- Discussion
- Conclusion
- Supporting informations
- Bumblebees behavioural patterns while homing in a visual conflict situation
- Introduction
- Materials and Methods
- Analysis of Influential factors on the bumblebees performance
- Analysis of Influential factors on the search location
- Trajectories classification
- Results
- Bumblebees performance
- Search location
- Number of clusters and validation
- Switching between the fictive nest-holes and states, study of Cluster 1
- Discussion
- Conclusion
- Learning while flying: how do bumblebees stabilised their head during the initial phase of learning flights?
- Introduction
- Materials and Methods
- Experimental set-up
- Animal preparation
- Tracking of head and thorax markers
- Head and thorax spatial orientation
- Saccade extraction
- Tracking error propagation
- Analysis of head and thorax rotations
- Retinal projection
- OF analysis
- Results
- Discussion
- Supporting informations
- Concluding remarks
- References